“We have secured a room here in the hotel, and again, we’ll go through the appropriate procedures to determine what was inside there,” Carroll told the media.

ABC News reports, citing sources, that Allen traveled by train from Los Angeles to DC via Chicago.

The president posted surveillance footage of the suspect running past the hotel’s security checkpoint. Trump said he did so for “transparency” and to highlight the speed with which agents reacted to the threat.

In his manifesto, the suspect mocked the hotel’s security, saying it was all focused on the perimeter of the hotel.

“Like, this level of incompetence is insane, and I very sincerely hope it’s corrected by the time this country gets actually competent leadership again,” he wrote in part.

Police said Allen has no criminal record and was not on law enforcement’s radar in Washington, D.C.

A Secret Service agent was shot during the incident after the suspect sprinted through the checkpoint. He was apprehended off camera, but police say he was not shot. He was stopped before he got to the ballroom, where Trump and other cabinet members were in attendance.

Allen and the Secret Service agent who was injured were both taken to a local hospital. The agent is said to be in good spirits following the incident.

Jeanine Pirro, the U.S. attorney for Washington, D.C, said the suspect was being charged with two counts: use of a firearm during a crime of violence and assault on a federal officer using a dangerous weapon.

Pirro said that the defendant would be arraigned on Monday in federal court at 1 pm local time.

He is being held in a police jail cell around half-a-mile from the Hilton.

If convicted of both counts, he faces up to 15 years in prison.

The reasoning behind the attack is unknown at this time.

Carroll refused to speculate on a motive and said it was too soon to know who the suspect was targeting.

Weapons and chilling manifesto

The shotgun and handgun used were legally purchased in California, a law enforcement source told The Times.

Blanche said that the weapons were purchased “within the last couple of years.”

Allen’s condition is unknown. Blanche said he was taken to a hospital but was not shot.

“I don’t think he’s cooperating with investigators,” he said.

Trump, speaking on Fox News Sunday Briefing, said Allen had written a “manifesto” before the attack.

“And the guy was a sick guy. When you read his manifesto, he hates Christians,” Trump said, adding the suspect’s brother had complained to law enforcement.

Trump was asked whether he knew that Allen’s brother had notified New London Police Department about the alleged manifesto he had sent to his family members prior to the incident. Trump said he “heard” about it and wished “they would have told us about it a little bit.”

“But it is what it is,” he said.

The manifesto allegedly written by the suspect called himself a “Friendly Federal Assassin” and that he was targeted Trump administration officials “prioritized from highest-ranking to lowest,” according to a report.

The manifesto was obtained by the New York Post. Two federal sources confirmed to The Times that the document was being investigated by the FBI.

The Post quoted portions of the manifesto.

“Turning the other cheek is for when you yourself are oppressed. I’m not the person raped in a detention camp. I’m not the fisherman executed without trial,” it said. “I’m not a schoolkid blown up, or a child starved, or a teenage girl abused by the many criminals in this administration. Turning the other cheek when *someone else* is oppressed is not Christian behavior; it is complicity in the oppressor’s crimes.”

“I am no longer willing to permit a pedophile, rapist, and traitor to coat my hands with his crimes,” the document said.

Caltech background

In October 2024, Allen donated $25 to ActBlue, a tech platform that processes political donations.According to the Federal Election Commission, the money was earmarked for Kamala Harris’ presidential campaign. It was his only political donation listed on the FEC website in the past decade.

Allen, who is registered to vote with no party preference, graduated from Caltech in 2017 with a degree in mechanical engineering. While at Caltech, he was a member of the school’s Christian fellowship and the Nerf club, according to his LinkedIn profile.

He was featured in a Caltech graduation announcement posted by the university in 2017 on Facebook, which included a picture of him as an adult wearing a cardigan and red tie and a photo of him as a beaming young child holding a stuffed bunny.

Allen also earned a master’s degree in computer science at Cal State Dominguez Hills in 2025, according to a commencement program. His LinkedIn profile picture shows him sitting in his cap and gown with the caption: “pretty sure my Master’s in CS is done.” On his profile he describes himself as a game developer, engineer, scientist and teacher.

‘He was very intelligent’

Allen was named teacher of the month in December 2024 at C2 Education, which specializes in college test preparation, tutoring and academic advising. A representative for C2 Education was not immediately available for comment.

Dylan Wakayama, president of the Asian American Civic Trust, said Allen tutored several high school students who are members of the organization, a Torrance-based nonprofit.

“They thought he was very intelligent, proficient in biology, mathematics and science. They thought he was on the nicer, quiet side. They were completely shocked when I told them that this all went down,” he said.

“I think all of us in Torrance would be shocked if this is the man who attempted to kill the president of the United States,” he said

In addition to his part-time work at C2 Education, he’s also self-employed, according to his LinkedIn, identifying as an “indie game developer.”

He registered a trademark in 2019 for “Bohrdom” an atomic fighting game he created and released on Steam, an online game platform. The game is described on the website as a “skill-based, non-violent asymmetrical fighting game loosely derived from a chemistry model that is itself loosely based on reality. Alternatively, think of it as a hybrid of a bullet hell and a racing game, with the inclusion of self-propelled pinballs.”

After Allen’s arrest, local and federal law enforcement swarmed the Torrance neighborhood where he apparently lived with his family. A gaggle of reporters and neighbors loitered in the drizzle around a multi-gabled house Saturday night as a helicopter hovered overhead.

Scene in Torrance

Torrance police arrived, clearing the road and putting up police tape along part of the street. FBI officials also appeared.

A man who responded to a knock on the front door said, “Not right now,” and declined to comment further.

Colin, a 39-year-old neighbor who declined to give his last name citing privacy concerns, said the residents of the home had just moved in six months ago.

“It’s tragic,” he said. “There’s no need for violence in this day and age.”

Another man, 50, who lives across the street and declined to provide his name to a reporter, said the family was friendly.

“We see them every day and we just say hi and they’re very nice,” he said. “They’re peaceful people, they don’t make any noise and when they see you they say hi.”

Torrance Mayor George K. Chen condemned the violence in Washington.

“Our community joins the nation in condemning the violent incident that occurred in Washington, D.C., during the White House Correspondents’ Dinner,” Chen wrote on X.

He said the incident should not define the L.A. suburb.

“Torrance is a community built on respect, diversity, hard work, and public safety,” Chen said.